Synthesis and structure of 5-methyl-1-(2-R-phenyl)-dihydro-2,4(1H,3H)-pyrimidinediones and their 2-thiono analogs |
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Authors: | V Yu Mitskyavichyus R S Baltrushis I Ch Bilinskaite É É Liepin'sh R M Zolotoyabko |
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Institution: | (1) Kaunas Technological University, 233006 Kaunas;(2) Institute of Organic Synthesis, Latvian Academy of Sciences, 226006 Riga |
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Abstract: | The reaction of o-substituted aromatic amines with methacrylic acid gave N-aryl--methyl--alanines, which were converted to dihydro-2,4-pyrimidinedione and dihydro-4-pyrimidinone-2-thione derivatives. The alkylation, acylation, and oximation of the dihydro-2,4-pyrimidinediones were accomplished. Conformational analysis of the compounds obtained was carried out by dynamic NMR methods.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1240–1247, September, 1991. |
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